Method and apparatus for performing impulse authorizations within a video on demand environment
US7975280B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 5, 2003 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Sep 30, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/47202
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A conditional access control apparatus for inserting descrambling messages and impulse authorizations to enable requesting subscribers to utilize requested scrambled content. The apparatus includes a content and asset storage module for storing content and assets, and a pre-encryption module for encrypting content to be stored in said content device. A transport processor inserts stored content into a forward application transport channel (FATC), and a controller interacts with a requesting subscriber and inserts into the FATC descrambling messages and impulse authorizations enabling the requesting subscriber to utilize requested scrambled content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.